Acetylcysteine Impurity 17 TFA salt CAS CATO-C4X-153255
| CAS No. | CATO-C4X-153255 |
| Molecular Formula | C7H11NO6S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Acetylcysteine Impurity 17 TFA salt is closely related to a carbohydrate-derived structure, an amide group, a sulfone group, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Acetylcysteine Impurity 17 TFA salt (CAS CATO-C4X-153255) is a certified pharmaceutical impurity reference standard with the molecular formula C7H11NO6SC2HF3O2 and a molecular weight of 351.25 g/mol.
Owing to a carbohydrate-derived structure, an amide group, a sulfone group, fluorine substitution, Acetylcysteine Impurity 17 TFA salt is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 351.25 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Acetylcysteine Impurity 17 TFA salt meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H11NO6S C2HF3O2 |
| Molecular Weight | 351.25 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Acetylcysteine Standards
- Acetylcysteine Impurity 12 (CAS 1115-65-7)
- Acetylcysteine Impurity 41 (CAS 13100-82-8)
- N-Acetylcysteine-d3 (CAS 131685-11-5)
- Acetylcysteine Impurity 33 (CAS 15058-19-2)
- Acetylcysteine Impurity 37 (CAS 155172-79-5)
- Acetylcysteine Impurity 18 (CAS 1637-71-4)
- Acetylcysteine impurity 66 (CAS 16708-09-1)
- Acetylcysteine EP Impurity D (CAS 18725-37-6)
Recommended Standards
- Rasagiline Impurity 6 HCl (CAS 152605-34-0)
- Acetazolamide EP Impurity A (CAS 60320-32-3)
- Baclofen impurity 18 (CAS CATO-C4X-101218)
- tert-butyl 2-[4-(2-hydroxyethyl)-1H-1,2,3-triazol-1-yl]acetate (CAS 1864016-50-1)
- (R)-3-Methylpyrrolidine-3-carbonitrile hydrochloride (CAS 2201703-85-5)
- 3-Amino-4-((3-hydroxypropyl)amino)benzonitrile (CAS 554457-32-8)
- Boc-D-Glu-Obzl.DCHA (CAS 34404-29-0)
- 1-(4-Bromophenyl)-2,2-dimethylpropane-1,3-diol (CAS 1444623-87-3)
- N-Methyl-4-nitro-3-((tetrahydrofuran-3-yl)oxy)benzamide (CAS 917909-67-2)
- Insulin Degludec Impurity 19 (CAS CATO-C4X-215719)
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